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timekeeping: update xtime_cache when time(zone) changes

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xtime_cache needs to be updated whenever xtime and or wall_to_monotic
are changed. Otherwise users of xtime_cache might see a stale (and in
the case of timezone changes utterly wrong) value until the next
update happens.

Fixup the obvious places, which miss this update.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: John Stultz <johnstul@us.ibm.com>
Tested-by: Dhaval Giani <dhaval@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Thomas Gleixner 2008-02-01 17:45:13 +01:00 • committed by Ingo Molnar
parent 3588a085cd
commit 1001d0a9ee
3 changed files with 6 additions and 2 deletions
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1
include/linux/time.h
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@ -122,6 +122,7 @@ extern void monotonic_to_bootbased(struct timespec *ts);
extern struct timespec timespec_trunc(struct timespec t, unsigned gran);
extern int timekeeping_is_continuous(void);
extern void update_wall_time(void);
extern void update_xtime_cache(u64 nsec);
/**
* timespec_to_ns - Convert timespec to nanoseconds